Terephthalic Acid, Used in the Production of Polyester Fibers and Films

question 15

Multiple Choice

Terephthalic acid, used in the production of polyester fibers and films, is composed of carbon, hydrogen, and oxygen. When 0.6943 g of terephthalic acid was subjected to combustion analysis it produced 1.471 g CO₂ and 0.226 g H₂O. What is its empirical formula?

• A)C ₂H ₃O ₄
• B)C ₃H ₄O ₂
• C)C ₄H ₃O ₂
• D)C ₅H ₁₂O ₄
• E)C ₂H ₂O

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Definitions:

Animism

The attribution of life and intentionality to inanimate objects.

Artificialism

The belief in developmental psychology that aspects of the environment and events are controlled by human or superhuman agents.

Latency

A period of time during which a process or condition exists or continues without manifesting significant signs or symptoms of its presence or any forthcoming changes.

Cognitive Development

The process by which an individual's ability to think, understand, and learn evolves over the course of their life.